F.P. Journe Octa Sport User manual

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User manual /Octa Sport - Ref. ARS2
A unique design based on an exclusive mechanism
English

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The construction of the Octa calibre has less powerful ties with the history of horology
than the constant-force device or resonance models do. Nevertheless, it symbolizes a horological
ideal: giving timekeepers the highest possible degree of precision and autonomy.
It can be observed, that if church clocks were set so high in towers, apart from enhancing
visibility, was mostly because it often took an entire month for the driving weights to drop the length
of their cords. Numerous systems were invented to increase the running time of timekeeper’s
devices, only meeting limited success. Given the restricted volume of a wristwatch, the size of the
mainspring was immediately limited. Watchmakers then discovered the trick of adding an extra
wheel to the customary gear train, in order to extend the length of its development. Unfortunately,
using this system only led them to observe that the level of energy actually reaching the balance
remained poor. To compensate, they fitted a smaller balance consuming less energy, but which
also lost in stability. Therefore, it’s not unusual to find watches that run for several days display-
ing an extremely unpredictable level of accuracy.
This challenge was a powerful source of motivation. I then imagined that the best and
most obvious solution to lengthen the running time would be to increase the capacity of the
spring development. Given its stability (1 metre and 1 millimetre thick), the challenge was to
integrate it on the same level as the gear train and escapement. Thanks to the low torque of this
spring, I could achieve extremely fast automatic winding (one and a half hour on a Chappuis
cyclotest for over 5 day’s running).
Once the challenge of autonomy was thus successfully met with this automatic winding
calibre, I knuckled down to the second challenge of managing to insert various complications
into that same movement: power reserve with large date display, fly-back chronograph with
large date display, retrograde annual calendar, UTC, etc… and doing so while maintaining
an identical size for all models in the Octa collection.
Three years of research and development were required before this one of a kind auto-
matic calibre could be presented to the public.
François-Paul Journe
Preface
Calibre Octa
A Horological Ideal_

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F.P.Journe strengthens its “lineSport” with the new Octa model with automatic winding,
with movement in Aluminium.
An exclusive new watch of an astounding lightness, thought and conceived specifically
for sportive activity.
This collection has been inspired by an important collector, aficionado of F.P. Journe
watches, who committed himself in numerous marathon and triathlon competitions and wished
to have an ultra light sports watch, coupled with a movement of authentic high horology.
F.P.Journe undertook long researches to find an ultra light and resistant material to receive
his exceptional calibres; while maintaining the standards of high horology that inhabit his everyday
life. With an extreme lightness in absolute comfort, the watch in its totality only weighs around 75
grams.
The passage from 18K rose gold, used for all the F.P.Journe movements, to aluminium was
not without difficulty, for obvious technical reasons. F.P.Journe took his research to a higher level
in an aesthetical quest to complete the appropriate contrast in colours.
Rubber inserts are fixed with an outstanding process to the tips of each link of the alu-
minium bracelet, the sides of the case and the titanium crown in order to efficiently protect the
watch from any shocks, just like the bumper of an ancient automobile. The crown and the folding
clasp, both in Titanium and engraved with the F.P.Journe signature, are covered with a rubber
coating. In addition, the folding clasp offers an adjustment system of a half link size (4mm approx.).
Preface
Octa Sport
Mechanical watch with automatic winding entirely in Titanium_

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Always taking into account the notes and observations concerning his watches, François-
Paul Journe states: “I realized that one of my friend’s Octa was never completely wound because
he works on a computer and his hand doesn’t move enough.”
From this observation he creates the new Octa calibre (1300-3) that uses the slightest
movement to automatically wind the watch. With talent, the watchmaker turns the problem
around, and creates a new off centered heavier rotor, that winds in one direction only with a
self-locking ball bearing system. The ceramic balls allow the rotor to move in one direction and
block it in the other. This way, every infinitesimal movement is maximally exploited for an opti-
mized winding of the watch.
The new calibre retains the characteristics of the classic Octa with: a five day power reserve
(120h) and a variable inertia balance wheel for an optimum yield that offers each model of the
Octa line an irreproachable stability.
The new “lineSport” is composed of a collection of ultra light watches entirely made in
Titanium and Aluminium: specifically conceived for a proficient sportive activity. The Aluminium
movement of each watch of the “lineSport” retains the exceptional properties of the exclusive
F.P. Journe calibres.
Technical development
Octa Calibre
Optimized winding system_

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Crown_
Manual winding :
Your watch is automatically wound when worn.
If the watch is stopped, turn the crown in position 0about a dozen times anti clockwise.
All models of the Octa Line offer an exceptional power reserve of 5 days (+120 hours).
The Octa models can operate above those 120 hours but the precision is thus not as efficient.
Setting the date :
Pull the crown in position 1and turn anti clock wise.
A manual correction is necessary, except for the months of 31 days.
Setting the time :
Pull the crown in position 2and turn anti clock wise to move the watch hands forward.
It is strongly advised not to turn the hands in the other direction.
Power reserve :
The power reserve hand indicates the number of hours remaining for
the functioning of the watch.
Important !
Push the crown back in position 0for the watch to work.
Operating instruction

Power reserve
indicator
Day/Night
Second
Large date
Hours and minutes
Crown
The sapphire second dial
is fixed byaTitanium circle,
screwed* on the Aluminium dial.
*Registered System
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Functions and Indicators

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Characteristics
Titanium
Superluminova
Rubber Shock Absorbers
Ceramic

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Characteristics

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Bracelet
Adjustable Bracelet
Easy extension of half a link_
Shortening the bracelet
of 1 or 2 links_

Special balance
Large barrel
Unidirectional Titanium and
Tungsten rotor
Inertia weights
Important!
On a rotating watch winder, program 274 tours /24h
to maintain the precision of the watch.
Turn only in the indicated direction!
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Characteristics
Mechanism of the Octa Automatique Réserve Sport
Patented system EP

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Movement_ Calibre 1300.3
Unidirectional automatic winding
Movement in aluminium alloy
Dimensions of the movement_ Overall diameter : 34.60 mm
Casing-up diameter : 30.40 mm
Overall height : 6.15 mm
Height of winding stem : 3.10 mm
Diameter of stem thread: S 1.20 mm
Balance_ Four adjustable inertia weights
Anachron free-sprung flat balance spring
Mobile stud holder
Free Sprung
Nivatronic laser soldered balance spring
Pinned GE stud
Frequency : 21,600 v/ h, (3Hz)
Inertia : 10 .10 mg*cm2
Angle of lift : 52°
Amplitude : 12h dial up : > 280°
90h dial up : > 220°
Main characteristics_ Three position crown :
Winding of the watch in position 0, clock wise
Correction of date in position 1, anti clockwise
Correction of time in position 2
Instant jump calendar
Off centre winding rotor in Titanium with Tungsten segment
Barrel with slipping spring
Escapement 15 tooth
Specifications

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Indications_ Centred hours and minutes
Small second at 6h00
Large date
Power reserve at 10h30
Day/Night indication
Autonomy_ 160 ± 10 h.
Winding Speed on watch winder : 274 rotations / 24 hours
Decoration_ Circular Côtes de Genève on bridges
Partly circular graining on baseplate
Polished screw heads with chamfered slots
Chamfered and circular grained wheels
Steel components hand polished and chamfered
Case_ Titanium with rubber inserts
Diameter : 44 mm
Total height : 11.00 mm
Dial_ Aluminium alloy and sapphire
Superluminova hands
Superluminova appliqué numerals
12 luminescent points
Number of parts_ Movement without dial : 286
Jewels 37
Weight_ Total weight on Titanium bracelet: 75 g
Movement alone : 11 g
1 sapphire glass sub dials: 2 g

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Maintenance_
Your wristwatch should be serviced once every four years to maintain its precision.
Important_
Keep the original warranty card supplied with your wristwatch carefully. Your authorized F.P. JOURNE retailer
will need this identity card for any after sales servicing. For all maintenance or repair, your wristwatch must
be entrusted only to an appointed F.P. JOURNE agent.
Warranty_
Your F. P .Journe - Invenit et Fecit watch is covered by a warranty against any manufacturing flaws for a
period of 2 years as of the date of purchase appearing on the back of the warranty card or certificate. The
warranty is valid only on presentation of the original card or certificate, duly filled out by the authorised
retailer (serial number, date of purchase, retailer’s stamp). The warranty does not cover normal wear or da-
mage resulting from abnormal use of the watch, accidents or alterations.
Warranty extension_
If your F. P .Journe - Invenit et Fecit watch was purchased at an F.P.Journe Boutique, your watch is au-
tomatically covered for a period of 3 years as of the date of purchase appearing on the back of the warranty
card or certificate. If your watch was purchased at an authorized retailer, we kindly invite you to register
on https://customerservice.fpjourne.com/en/guarantee during the 30 days following the initial date of
purchase to benefit from an additional year of warranty.
© Montres Journe SA_ Geneva